• Melonpoly@lemmy.world
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    11 months ago

    Maglevs are generally advertised as being city to city transport.

    They do have a higher power consumption than bullet trains at high speed (the LO uses about 90-100 kw/seat - km vs the N700 series which is 70 kw/seat-km), however they are going up against air travel which is far less efficient (Airbus A319neo uses ~209 Wh/seat-km). So compared to flying they are still way more efficient. I’m not sure about the rail switching, it looks like they have fewer moving parts but I haven’t looked into it. I’m not sure my having a third rail is that important? There are other methods of providing power to trains for example using pantograph or induction or by recovered harmonic oscillation of the magnetic fields created from the track.

    Maglevs reduce travel time, better acceleration, better incline performance, lower maintenance costs, are quieter than conventional rail, can operate at higher speeds during rain or snow since the don’t rely on friction for breaking, and are still more efficient than air travel. However, running costs (mostly from power consumption) are more expensive and they can’t use existing infrastructure. So on paper they solve many issues while having fewer cons than conventional high-speed rail.

    • frezik@midwest.social
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      11 months ago

      Switching is a big, complicated mess for maglevs. Traditional rail is simple here, and has been solved for over a century.

      Maglev could be good for city to city, provided those cities are far enough apart and you make no stops in between. Problem is, we often want to give service to cities in between. Forcing maglevs to accelerate and decelerate all the time kills their advantage.